2003 LA7
Discovery | |
---|---|
Discovery date | 2003 |
Designations | |
MPC designation | 2003 LA7 |
1:4 resonance[1][2] | |
Orbital characteristics[3] | |
Epoch June 30, 2009 (2455000.5) | |
Aphelion | 117.59 AU (Q) |
Perihelion | 35.948 AU (q) |
76.769 AU (a) | |
Eccentricity | 0.53173 |
672.66 yr | |
342.70° (M) | |
Inclination | 5.6456° |
34.162° | |
271.54° | |
Physical characteristics | |
Dimensions | ~231 km (assumed)[4] |
Albedo | 0.09 (assumed) |
~22.4[5] | |
6.4[3] | |
|
2003 LA7, also written as 2003 LA7, is a Resonant trans-Neptunian object that goes around the Sun once for every four times that Neptune goes around. Another possible Fourtino is 2011 UP411
![]() The orbit of "fourtino" 2003 LA7 compared to Pluto and Neptune. |
![]() Neptune is held stationary at 5 o'clock. |
2003 LA7 is in a 1:4 resonance with the planet Neptune.[1][2] For every one orbit that a it makes, Neptune orbits 4 times.
It is currently 43 AU from the Sun,[5] and will come to perihelion around 2041.[3]
Assuming a generic TNO albedo of 0.09, it is about 231 km in diameter.[4]
It has been observed 14 times over 4 oppositions.[3]
See also
- (119979) 2002 WC19 (a twotino)
- (136120) 2003 LG7 ("threetino")
References
- ↑ 1.0 1.1 "MPEC 2009-C70 :Distant Minor Planets (2009 FEB. 28.0 TT)". Minor Planet Center. 2009-02-10. Retrieved 2009-03-14.
- ↑ 2.0 2.1 Marc W. Buie. "Orbit Fit and Astrometric record for 03LA7" (last observation: 2008-03-12 using 17 of 18 observations). SwRI (Space Science Department). Retrieved 2014-10-13.
- ↑ 3.0 3.1 3.2 3.3 "JPL Small-Body Database Browser: (2003 LA7)" (last observation: 2007-04-21). Retrieved 2009-03-14.
- ↑ 4.0 4.1 Wm. Robert Johnston (22 August 2008). "List of Known Trans-Neptunian Objects". Johnston's Archive. Archived from the original on 13 February 2009. Retrieved 2009-03-14.
- ↑ 5.0 5.1 "AstDys 2003LA7 Ephemerides". Department of Mathematics, University of Pisa, Italy. Archived from the original on 2009-05-14. Retrieved 2009-03-19.
External links
- Orbital simulation from JPL (Java) / Horizons Ephemeris
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